In F.C.C. v. Fox Television Stations, which the court heard on Tuesday, the justices should overturn the 1978 ruling and apply the same First Amendment principles to all media. If the court refuses to go that far, it should at least uphold the decision by the United States Court of Appeals for the Second Circuit that the F.C.C.’s indecency policy is “unconstitutional because it is impermissibly vague” and must be revised to give reliable notice about what can be broadcast.